
VENTURA — The Ventura County Environmental Health Division (Division) has received confirmation from the California Department of Public Health that a bird collected on May 12th, 2026, from the city of Ventura has tested positive for West Nile Virus (WNV). WNV is established in Ventura County and additional WNV positives are expected. This is the first detection of WNV activity this year in Ventura County. Ventura County Public Health confirms that no human cases have been identified to date in 2026.
The Division monitors and controls mosquito breeding sources throughout Ventura County. All mosquito breeding sources in the area where the bird was collected will be inspected and treated if evidence of mosquito breeding is observed.


